Not that I definitely think they won't win, but Phil pretty much ignoring Jill in the preview really doesn't make me think they'll take it since if they did, Phil would've mentioned them both, not just Thomas. They still could win, but I don't think so.
Plus, one cap of them both looking very much distressed indicates to me that something might take them out midway through the leg. Maybe after the bungee. I don't know.